AC PSU LED states
The PSU LED indicates whether the PSU is operating correctly and connected to power.
| State | Description |
|---|---|
| Off | AC power not connected. If this LED is not lit, check to make sure the PSU is connected to a power feed. If the power feed is good then the PSU has failed and should be replaced. |
| Flashing green | The PSU is in standby mode, not supplying power to the chassis. |
| Green | Normal Operation with AC power connected. |
| Amber |
Fault condition (PSU shuts down). This can occur if power input or output is out of the normal operating range, temperature is out of the normal range, or one or more fans are not operating. This may be caused by a problem with the PSU. This could also be caused by conditions external to the PSU, for example, if there is a problem with the power supplied to the PSU or if the PSU has gotten too hot because of insufficient ventilation. |
| Flashing amber | Warning that power input or output, temperature, or fan operation is close to being outside of the normal operating range. This may be caused by a problem with the PSU. This could also be caused by conditions external to the PSU, for example, if there is a problem with the power supplied to the PSU or if the PSU has gotten too hot because of insufficient ventilation. |